How To: Install S550 Mustang EcoBoost Turbosmart Kompact BOV

Turbosmart Kompact Blow Off Valve

The Turbosmart Kompact BOVis the first blow off valve available to-date for the 2015-23 EcoBoost Mustangs. It will feature a lightweight, brass and aluminum construction, two-piece piston, and can handle up to 30 pounds of boost. The Kompact Shortie’s dual-port design provides one plumb back port to keep your EcoBoost Mustang’s computer happy, and a second vent to atmosphere port for that trademark Turbosmart BOV sound we all know and love.

Required Tools

• Thread Sealer
• Zip Ties
• 1/4" Socket Wrench
• 1/4" Extension
• 8mm Socket
• 10mm Socket
• T-30 Torx Bit
• 3/16" Allen Key or Socket
• 4mm Allen Key or Socket
• 5mm Allen Key or Socket

Install

1. To begin installation, start removing the battery cover and disconnecting the negative battery cable.
2. Remove the engine cover with an 8mm and 10mm socket.
3. Loosen the T-30 Torx bolt on the MAP sensor, disconnect the electrical connection, and remove the MAP sensor from the intake plenum.
4. If you notice, there will be two barb fittings and one block off plug.
5. Use the second barb fitting if you will be running an aftermarket boost gauge of some kind.
6. If not, install the supplied block off plug.
7. Apply thread sealant to the threads of the barb fitting.
8. Hand tighten the barb fitting and then use a 13mm wrench to tighten it two more turns.
9. Apply thread sealant to the block off plug and tighten it down with a 3/16" Allen key or socket.
10. Install the MAP adapter in the intake plenum and then install MAP sensor on the adapter.
11. Secure it with the included 4mm Allen bolt and reconnect the sensor.
12. Slide one of the included hose clamps over the included vacuum line.
13. Position the end of the hose over the barb fitting on the MAP adapter.
14. Secure the hose with hose clamp using needle nose pliers.
15. Release the hose clamps from the boost by pass hose securing it to the intake pipe and the outlet port underneath the BOV flange.
16. Remove the hose from the car.
17. Loosen the bolts securing the factory BOV to the flange with a 5mm Allen key or socket.
18. Disconnect the solenoid electrical connection and remove the factory BOV from the car.
19. Install the new Turbosmart BOV using the previously removed hardware.
20. Be sure you do NOT too over tighten.
21. Remove the electrical tape from the solenoid connection and trim back the harness wrap about a half inch.
22. Place the quick crimp connectors over both wires, polarity does not matter.
23. Crimp the connectors with a pair of pliers.
24. We ran the harness along another set of wires and zip tied it out of the way.
25. Route the vacuum hose alongside the engine harness and secure it with a few zip ties.
26. Mock up the hose as if it was installed on the barb, and cut the hose to length.
27. Slide the last included hose clamp over the hose and place the hose over the fitting on the BOV.
28. Secure the hose clamp with a pair of needle nose pliers.
29. Since we installed a JLT intake onto this car not long ago, we used the cap that was included in the cold air kit to cover the fitting on the intake pipe.
30. If you are using the factory intake or some other brand, be sure and pick up a 7/8” vacuum cap from your local hardware store.
31. Reinstall your engine cover and connect the negative battery cable.
32. Position your BOV cap at the maximum soft position.
33. Free rev the engine at idle and back off quickly.
34. If the engine does not return to normal speed increase the spring tension by one full turn.
35. Once you have it dialed in, you’re all set!